Isis (sometimes stylized ISIS) was an American heavy metal band founded in Boston, Massachusetts in 1997 but later based in Los Angeles. They borrowed from and helped to evolve the post-metal sound pioneered by bands such as Neurosis and Godflesh, characterized by lengthy songs focusing on repetition and evolution of structure. Isis's last studio album, Wavering Radiant, was released on May 5, 2009. They disbanded in June 2010, just before the release of a split EP with the Melvins.